Openstack

CodePre offers a wide variety of tutorials on the topic Openstack.

Openstack Liberty Lab Part 4: Configure Glance Image Service

The You can support us by downloading this article in PDF format via the link below. Download the guide in PDF format turn off The The The Glance is an imaging service that enables users to discover, register, and retrieve virtual machine images. I assume that you have installed the glance openstack image service in… read more »

How to adjust/expand the size of Cinder in OpenStack

The You can support us by downloading this article in PDF format via the link below. Download the guide in PDF format turn off The The The In the previous guide, we discussed how to create a Cinder volume in OpenStack and attach it to a running instance. This tutorial will introduce how to expand/increase… read more »

How to rename an instance / server in OpenStack

How to rename a VM, instance or server in OpenStack? After you create an instance in OpenStack, you can modify its name in the running state. True if the service running in the VM was changed and the name needs to be updated to reflect the name. The instance / VM name in OpenStack can… read more »

Openstack Liberty Lab Part 5: Configuring Nova Computing Services

This is Part 5 of our Openstack Lab guide series. So far we have introduced: Openstack Liberty Lab Part 1: Setting Up the Network and All Prerequisites Openstack Liberty Lab Part 2: Install Openstack Packages Openstack Liberty Lab Part 3: Configuring Keystone Identity Services Openstack Liberty Lab Part 4: Configuring Glance Image Service For nova… read more »

How to clone and use KVM virtual machines in Linux

The most important and commonly used functions in the virtualization world are functions such as cloning a virtual machine, taking a snapshot of the current state of the virtual machine, and migrating the virtual machine in real time. Recently I have been using KVM and Openstack Cloud computing platforms. Sometimes you have to clone a… read more »

How to create and configure a bridge network for KVM in Linux

In today’s guide we will look at how to create and configure a bridge network for KVM in Linux-RHEL / CentOS / Ubuntu / Debian / Arch Linuxe.t.c. When using Linux bridges in KVM, virtual machines can access external networks and services outside the virtual environment. There are multiple ways to configure bridged networks for… read more »

Installing a Three-Node OpenStack Queens Cluster-Part 6

Configure Neutron on the controller node Neutron is an OpenStack project designed to provide “network connection as a service” between interface devices (such as vNICs) managed by other OpenStack services (such as nova). It implements the Neutron API. Here are the reasons why we use Neutron: It provides an API for cloud tenants to build… read more »

Installing a Three-Node OpenStack Queens Cluster-Part 8

Configure Neutron on the compute nodes Neutron usually requires plug-in software, such as OpenVswitch. So far, on the Compute node, we have installed Libvirt and Nova Compute. We will add Openvswitch and L2 Agent. “Make sure there are no believers and unbelievers in the religion of love. Love embraces everyone.” ―Rumi step 1: Installing Neutron… read more »

Installing a Three-Node OpenStack Queens Cluster-Part 10

Create and launch Horizon’s virtual machine instance ad install step 1: Sign in with the new user we created earlier in the system and continue to create the instance [[email protected] ~(keystone)]# su – tech ##use your username [[email protected] ~]$ [[email protected] ~]$ vim ~/keystonerc export OS_PROJECT_DOMAIN_NAME=default export OS_USER_DOMAIN_NAME=default export OS_PROJECT_NAME=helloworld #remember the project we had created… read more »

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